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Questions  

The average speed v and r.m.s. speed  VRMS of the molecules are related as 

a
vRMS=0.92v
b
vRMS=0.29v
c
vRMS=v
d
v=0.92vRMS

detailed solution

Correct option is D

v=8RTπM vRMS=3RTMvvRMS=83π=0.92

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